单词	使寒心之事
释义	同Discouragement
随便看	relief outlet relief paint relief photograph relief pitcher relief plate relief polishing relief-polishing relief port relief pressure control valve relief pressure control valve (hydraulic) relief pressure control valve(hydraulic) relief pressure control valve[hydraulic] relief pressure control valve (pneumatic) relief pressure control valve(pneumatic) relief pressure control valve[pneumatic] relief print relief printing relief printing ink relief printing machine relief process relief ratio relief ring relief road reliefs relief/safety valve